A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-00-591-6315
NSN 6240-00-726-1648
NSN 5950-01-331-9773
NSN 6110-00-157-1699
NSN 5996-01-434-0922
NSN 6135-00-269-5843
NSN 4140-00-116-1022
NSN 7035-00-731-8729
NSN 5999-00-133-5393
NSN 5985-01-296-9539
NSN 5930-01-235-6679
NSN 6320-01-176-8367